SSayoo

Privacy Policy

Last updated 13 October 2026

Sayoo Privacy Policy

Effective date: 13 October 2026 Last updated: 13 October 2026 Operator: Zhang Zhixing

Sayoo is a translation service that translates speech, text and photos. This policy covers the Sayoo iPhone app (including its screen-broadcast extension), the Sayoo web app (app.sayoo.me) and the Sayoo website (sayoo.ai and sayoo.me). It explains what information we handle, where it goes, how long we keep it and what choices you have. Once the Sayoo desktop app is released, this policy applies to it too; the parts below about the desktop app apply when you use it. "Sayoo", "we" and "us" refer to the Sayoo service, operated by Zhang Zhixing.

Sayoo has two modes. In offline mode, speech recognition and translation run on your iPhone. In cloud mode, our servers and our AI provider do that work. AI summaries always use the cloud. Wherever the difference matters, we point it out. Offline mode is available only in the iPhone app. The web and desktop apps always use cloud mode, but text in images is still recognized on your device (see Section 2).

The web and desktop apps share your account and daily free allowance with the iPhone app. Wherever the apps differ, we point that out too.

Sayoo is currently free. Cloud features have a daily free usage limit, which resets the next day once used up. We don't currently offer any paid purchases. If we introduce paid features in the future, we will update this policy before they launch.

At a glance

1. Information we collect

1.1 Account information

In the iPhone app and the web app, you can sign in with Apple, or register and sign in with an email address and password. Google sign-in isn't available at the moment. We don't currently offer use without an account, and cloud features require you to sign in.

1.2 What you translate in cloud mode

In cloud mode, we receive the content you ask us to process:

In return, we send back transcripts, translations and, in spoken modes, translated speech generated in the cloud. Content is passed to Alibaba Cloud Model Studio without your name, email address or account ID. We don't use your voice to identify you or to create a voiceprint.

1.3 Usage records

To apply the daily free usage limit, we keep a usage record for each cloud request, linked to your account: the feature used, start and end times, status, the seconds of audio, characters or number of uses processed, and any error code. These records do not contain what you said or wrote, and they are not used for analytics or advertising. We also keep:

1.4 Technical information

1.5 When you contact us

If you email us feedback from the iPhone app, we receive your email address, the feature category in the subject line and whatever you write. You can choose to add your app version, iOS version, device type and interface language, and you can edit or remove them before sending. The app never attaches photos, recordings, history or account details. You can't yet send feedback from inside the web and desktop apps.

2. What stays on your device

3. How we use information

We use information to:

We do not sell or rent your information, show ads, track you across other companies' apps or websites, or use your content to train AI models.

Legal bases (EEA, UK and similar laws). We rely on four legal bases:

4. Who we share information with

We share information only as needed to run Sayoo:

Apple, Hugging Face, jsDelivr and Cloudflare handle information under their own privacy policies.

5. International data transfers

Sayoo's servers are in Hong Kong. To provide cloud features, your content passes through Sayoo's server in Hong Kong (Alibaba Cloud Hong Kong) to the Singapore region of Alibaba Cloud Model Studio for processing. Data is stored in Singapore, and model inference runs on Alibaba Cloud nodes outside the Chinese mainland. Sign-in involves Apple, offline models for the iPhone app are downloaded from Hugging Face, photo text recognition models for the web and desktop apps are downloaded from jsDelivr, and our website at sayoo.ai is hosted by Cloudflare. These companies may process information in the United States and elsewhere. Data protection laws in these places may differ from those where you live. We give each provider only what it needs, always over encrypted connections.

6. How long we keep information

| Information | How long we keep it | |---|---| | Account profile, sign-in identities and account ID | Until you delete your account | | Sign-in sessions | Sign in with Apple: access tokens are valid for up to 15 minutes and can be renewed for up to 30 days after sign-in. Email sign-ins are valid for up to 30 days. Signing out ends the session. In the web and desktop apps, if our server can't be reached when you sign out, you're still signed out on that device, but the session on our server stays valid until it expires; you can sign in again and choose "Sign out everywhere" in Settings → Account. Hashed records of past sessions are kept until you delete your account. | | Live speech in cloud mode (audio, transcripts, translated speech) | Not stored on our servers; passed through in real time | | Text, photo-text and summary requests | Your submitted text and its result are kept, encrypted, for about 5 minutes after the request completes; nothing is stored while it is in progress. We also keep a record of each request until you delete your account: its ID, status and a one-way hash of the request (used to stop the same request ID being reused for different content). | | Usage records | Until you delete your account | | Error logs | Record technical details such as error codes only, never your content | | Summary consent | 1 hour; if you chose to remember it (in the web and desktop apps, by leaving "Remember" selected, as it is by default), until you withdraw it or delete your account | | Sign-in rate-limit counters | About 5 minutes | | Deletion request records (see Section 7) | Contain only a hash of the request ID and its status, never your account profile; not automatically deleted at present, and you can ask us to delete them |

On your iPhone, history stays until you delete it, delete the app or delete your account in the app on that iPhone. Turning off saving affects only new items.

Desktop app history stays on your computer until you delete it, clear it in Settings → Data & privacy, or delete the app's data folder. If your computer runs very low on storage, it may also be cleared automatically. Web app history stays in your browser until you delete it, clear it, or clear the site data for app.sayoo.me. Your browser may also clear web app data on its own, for example when storage runs low, in some browsers after you haven't visited the site for a while, or when you close a private window. So export anything important. Signing out and deleting your account don't delete this history, and on a Mac, moving the desktop app to the Trash doesn't delete its data folder. Clearing history, signing out and deleting your account also don't remove the settings and photo text recognition models that the web and desktop apps keep on your device. They're normally removed only when you clear the site data for app.sayoo.me or delete the desktop app's data folder, though they may also be cleared automatically like history, and withdrawing summary consent removes the consent ID stored on your device.

7. Deleting your account

In the iPhone app, go to Settings → Account → Delete account. To protect your account, you'll confirm with your password or by signing in again with Apple, and then type DELETE.

In the web or desktop app, go to Settings → Account → Delete account, then enter your current password and type DELETE. The web and desktop apps can currently confirm your identity only with a password, so only accounts that use an email address and password can be deleted there. If you sign in with Apple, delete your account in the iPhone app or contact us (see Section 13).

We delete your account data from our servers, including:

Running translation sessions are stopped.

If you delete your account in the iPhone app, that account's history and any pending requests on that phone are erased. If you delete it in the web or desktop app, that account's history in that browser or on that computer is not erased.

Wherever you delete your account, its web and desktop app history can't be viewed or cleared in Sayoo afterwards. So before you delete it, sign in to that account in each browser and desktop app you've used, and export or clear its history in Settings → Data & privacy. If you've already deleted your account, the only way to remove that history is to clear the site data for app.sayoo.me in your browser or delete the desktop app's data folder. This also removes the history, sign-in and settings of any other Sayoo account in that browser or on that computer, and you should quit Sayoo before deleting the data folder. History on any other iPhone where you used Sayoo is not affected; delete it there, or delete the app. Copies already in your device backups are not affected.

If you sign in with Apple and delete your account in the iPhone app, we first ask you to confirm by signing in with Apple once more, and we then revoke Sayoo's Sign in with Apple authorization for your Apple account. Deleting your account in the web or desktop app doesn't revoke this authorization automatically; you can stop using Sayoo yourself under Sign in with Apple in your Apple account settings.

What we keep, and why:

8. Your choices and rights

Depending on where you live, you may also have further rights:

To make a request, contact us (see Section 13). We may need to verify your identity before acting on it.

9. Children

Sayoo is not directed to children under 13, or the higher minimum age that applies where they live. We do not knowingly collect personal information from children. If you believe a child has given us personal information, please contact us and we will delete it.

10. Security

No system is perfectly secure, but we work hard to protect your information and to keep as little of it as we can.

11. Our website and web app

The Sayoo website (sayoo.ai and sayoo.me) provides information about Sayoo. It does not require an account or ask you to submit personal information, and it does not use cookies for advertising or analytics. Like any website, the web server receives the information your browser sends to load a page, such as your IP address and browser type. sayoo.me is served from our own server, which is set up not to keep access logs of these visits; sayoo.ai is hosted by Cloudflare, which handles this information under its own privacy policy.

The Sayoo web app (app.sayoo.me) requires you to sign in, and the rest of this policy applies to it. The web app doesn't use cookies. Instead, it uses your browser's local storage to keep you signed in and to store your settings and history (see Section 2). Its pages, scripts and API are served from our server in Hong Kong, which is likewise set up not to keep access logs of page visits. Apart from downloading photo text recognition models from jsDelivr and opening Apple's sign-in page if you choose Sign in with Apple, the web app itself doesn't connect to other third-party servers; for browser features such as read-aloud, see Section 2.

12. Changes to this policy

We may update this policy as Sayoo evolves. When we do, we'll change the dates above. For significant changes, we'll also let you know in the iPhone app, the web app or on our website before they take effect. If we introduce paid features in the future, we will update this policy before they launch.

13. Contact

Zhang Zhixing Jinzhong, Shanxi, China Privacy contact: support@sayoo.ai